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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200701-25">
<title>X.Org X server: Multiple vulnerabilities</title>
Sean Larsson from iDefense Labs has found multiple vulnerabilities in the
DBE and Render extensions.
<product type="ebuild">X.Org</product>
<announced>January 27, 2007</announced>
<revised>February 26, 2007: 02</revised>
<package name="x11-base/xorg-server" auto="yes" arch="*">
<unaffected range="ge">1.1.1-r4</unaffected>
<vulnerable range="lt">1.1.1-r4</vulnerable>
The X Window System is a graphical windowing system based on a
client/server model.
Multiple memory corruption vulnerabilities have been found in the
ProcDbeGetVisualInfo() and the ProcDbeSwapBuffers() of the DBE
extension, and ProcRenderAddGlyphs() in the Render extension.
<impact type="normal">
A local attacker could execute arbitrary code with the privileges of
the user running the X server, typically root.
Disable the DBE extension by removing the "Load dbe" directive in the
Module section of xorg.conf, and explicitly disable the Render
extension with ' Option "RENDER" "disable" ' in the Extensions section.
Note: This could affect the functionality of some applications.
All X.Org X server users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=x11-base/xorg-server-1.1.1-r4&quot;</code>
<uri link="">CVE-2006-6101</uri>
<uri link="">CVE-2006-6102</uri>
<uri link="">CVE-2006-6103</uri>
<metadata tag="submitter" timestamp="Tue, 23 Jan 2007 12:31:17 +0000">
<metadata tag="bugReady" timestamp="Wed, 24 Jan 2007 15:54:52 +0000">